DE102009057481A1 - Outside air-leading home automation device - Google Patents

Abstract

Outdoor air-conducting building services equipment with an air path, in which a fan outside air is passed through a heat exchanger. The heat pump has surfaces, in particular a series of struts, to which at least one layer is attached, which is largely airtight connected to the surface or strut, in particular glued. In particular, the fact that the layer largely encloses the heat pump, except for the suction and the Fortgasöffnung, an exchange of air between the outside and inside air is avoided, the heat pump is thus sealed almost airtight between outside air and inside air. Advantageously, the layer is located between an outer wall and a surface of the outdoor air-conducting building services equipment, in particular between the outer wall and struts.

Description

The invention relates to an outside-air-leading-Haustechnikgerät for installation in a building in which an at least partially formed by a wall air passage from an air intake to a Fortgasöffnung, with a space located in the air, in which a fan is arranged, the gas promotes to a heat exchanger.

Outdoor air-conducting domestic appliances, in particular air / water heat pumps for heating residential buildings, are offered as devices for outdoor and indoor installation. Modern buildings are made as airtight as possible, with a due to leaks in the building envelope air exchange rate. In the area of leaks in the housing of the external air-conducting building services equipment may cause condensation or ice. Both can cause moisture damage. Air / water heat pumps have a Abtauwanne to prevent moisture damage, especially in the area of the evaporator, in which moisture can be collected.

According to EP 1 870 643 A2 For example, a heating device with a first and a second heat pump is known. Optionally, the first or the second heat pump is activated. The first and second heat pumps are preferably arranged in an externally sealed, thermally insulated housing, which is preferably airtight. Through different areas air flows through a heat exchanger and an evaporator and condensers. These areas are preferably insulated from each other, and only via the heat exchanger, the capacitors and the evaporator are interconnected.

With a heat pump 100 according to DE 20 2008 000 950 U1 are those components to which water can condense during operation of the heat pump, at least partially thermally insulated. At least the adjoining thermal insulation is in such close contact that they collide airtight.

The object of the invention is to provide a low-cost outdoor air-conducting building services equipment with a supply of outside air, in particular an air / water heat pump, for installation in a building, which helps to prevent energy losses and moisture damage, in particular of the building, with a simple , inexpensive, reliable and reliable production of the outdoor air-conducting building services equipment is possible for the production.

The problem is solved by the features of claim 1.

A positioned in a building outside air-leading building services equipment, namely a heat pump, a ventilation device or a fuel cell heater (BZH) is to sealed in particular in the airway, preferably on a suction side or a Ausblasseite opposite the installation room with a layer, in particular a film. In the airway preferably a first heat exchanger, in particular in the heating operation of an air / water heat pump, a refrigerant evaporator, and in the cooling mode a Kältemittelverflüssiger, in a BZH a fuel cell stack and heat exchanger, or arranged in a ventilation device, an air / air heat exchanger. The airway in an air / water heat pump advantageously has a wall. The wall may advantageously also be the wall of a pipe or other air duct. In an advantageous air / water heat pump, in a BZH or a ventilation device, the air path is advantageously at least partially formed by air or gas ducts or pipes. Flexible pipes made of plastic or metal are advantageously at least part of the air path. It is advantageous at least a seal with thin layers around the first heat exchanger around or at least on one side of the fan to a fan. In the exemplary embodiment, an air / water heat pump is described, the sealing is carried out in the same way in a BZH or a ventilation device. In hermetically designed buildings, the airtightness of the building envelope is thus maintained by the internally positioned outdoor air-conducting building services equipment. Leaks in the housing of the outdoor air-conducting building services equipment are largely avoided, and condensation or ice formation can not occur. Thus, in particular moisture damage does not occur in the installation room. It is advantageous to airtight execute other parts of the outdoor air-conducting building services equipment, which is in the range of the negative pressure, this is the area of the airway in the direction of flow of the gas (in particular air) in front of the fan, or the overpressure, this is the area of the airway in the flow direction of the gas (in particular air or exhaust) behind the fan, are. In the case of an air / water heat pump, a layer is thus provided around the evaporator suction side or in the region of the overpressure on the outlet side.

Another advantage of the invention is that, if necessary, the entire outside air-conducting building services equipment without the covering parts, and not only the air path is taped to improve the tightness, this embodiment will be described later. The air intake and the Fortgasöffnung is not closed by the film.

It is advantageous to perform other parts of the outdoor air-leading domestic appliance airtight, especially in the field of Vacuum or overpressure. In the case of an air / water heat pump, this takes place on the evaporator suction side and / or in the region of the overpressure on the outlet side.

Another advantage of the invention is that, if necessary, the entire outside air-conducting building services equipment, and not only the airway, is taped to improve the tightness. The air intake and the Fortgasöffnung is not closed by the film.

An advantageously designed heat pump is completed by means of different trim parts once to the inside and once set up the outside heat pump. Masking takes place at least for devices that are intended for indoor installation. Nevertheless, the frame or housing construction for the two variants can be almost the same.

Advantageously, an outdoor air-leading domestic appliance, in particular an air / water heat pump for installation in a building, equipped with at least partially in addition to a trim part such as an outer wall mounted thin, flexible and largely airtight, foil-like layer, whereby the outdoor air-leading domestic appliance is largely airtight to the building. The layer is preferably less than about 3 mm, more preferably less than 1 mm, in particular about 0.1 mm thick. In the air / water heat pump, an air path is formed, which leads from an air intake to a Fortgasöffnung, wherein the airway is a space for a fan, which guides the air through the air intake. In an air / water heat pump, the gas is still outside air, which is conveyed to at least a first heat exchanger and through the Fortgasöffnung out of the heat pump out.

In a BZH, the intake of the outside air also takes place via an air path which is formed by an air intake opening and a suction space in which a fan is seated. To the air, a fuel, in particular a fuel gas is now advantageously admixed, preferably reformed in a chamber, in a substoichiometric reaction and fed to a highly thermally insulated fuel cell stack, is generated in the stream. After passing through the fuel cell stack, afterburning and, advantageously, heat exchange take place in a first heat exchanger of the BZH, where the heat of the fuel gas is transferred to a heat transfer fluid. It is now promoted as a gas gas to Fortgasöffnung.

In a ventilation device, the first heat exchanger is in particular an air / air heat exchanger. The gas treated here is air.

In an advantageous embodiment, the layer of the outside air-conducting building services equipment between an outer wall and a surface of the outside air-conducting building services equipment, in particular arranged on at least one strut, wherein the layer at least substantially rests airtight on the strut.

According to a further aspect of the invention, the layer is adhered to at least one surface, in particular a strut of the outside air-conducting building services equipment.

In an advantageous embodiment, the layer between the at least one outer wall and a surface is wrapped around the outside air-conducting building services equipment, in particular the struts.

It is furthermore advantageous if the layer has cutouts or cut-outs through which frame parts, functional parts, connecting lines, connecting elements or connection cables can pass through the layer.

An outdoor air-conducting building services equipment is advantageously designed so that the film-like layer a film of plastic or metal, tar paper, impregnated paper, impregnated fabric, foam fleece, rubber or similar flexible, airtight material having a thickness of less than about 3 mm, approx 1 mm or, in particular, about 0.1 mm, in particular PE or PET film.

According to one aspect of the invention, the layer is formed from a plastic shrink film, in particular a shrink hood, so that any wrinkles or excesses can be removed by heating.

In an advantageous outdoor air-conducting building services equipment, the layer is partly pre-coated in the region of splices with adhesive, between the layer and preferably a strut, a double-sided adhesive is glued or glued an elastic joint sealing tape to the strut or the layer.

Furthermore, it has proven to be advantageous if the outside air-leading building services equipment is completely or almost completely enclosed by the layer.

In an outdoor air-leading building services equipment, especially a heat pump, it is Particularly advantageous that the air path, consisting of the room, the air connection, the fan, a first heat exchanger preferably with a defrosting trough, and the blow-out with the air connection is completely surrounded by a layer.

According to a further advantageous idea of the invention, an elastic joint sealing strip is mounted on at least one strut, in particular glued, in such a way that it bears against an outer wall.

Surprisingly, it has been found that the inventive design for an air / water heat pump for a room air-independent fuel cell heater (BZH) is suitable to produce a corresponding gas-tightness. Fuel cell heaters also have an air passage through which outside air, or at least air independent from the showroom of the BHZ, is supplied. Furthermore, a gas flow, the fuel cell heater, it is an exhaust gas flow out of the device to the outside. Advantageously, the fuel cell heater has a frame of struts, which are covered with a foil, and outer walls, which are set in front of the foils or struts. In this way, a corresponding gas-tightness between an interior of the fuel cell heater and the space surrounding the fuel cell heater is achieved.

In the figures, a corresponding embodiment is shown:

1 : Air / water heat pump with layer,

2 : Air / water heat pump with layer,

3 : Air / water heat pump with layer,

4 : Layer with cutouts,

5 : Layer with punched out and glued,

6 : Partial view of the seal with joint sealing tape,

7 : Partial view of the seal with joint sealing tape,

8th : Heat pump with a shrink hood.

According to 1 is an outdoor air-leading home automation device an air / water heat pump 100 with aspiration 120 . 121 . 122 . 123 . 130 . 131 . 132 . 133 . 140 . 141 . 142 , and or 143 shown. The air / water heat pump 100 has an internal airway 200 on. The airway begins in particular with an air intake opening 210 to which at least one wall 201 followed. In a room 220 is a fan 221 arranged, in the embodiment, this fan 221 to a supporting wall 222 attached. The ventilator 221 is in front of a fan nozzle 223 arranged, creating air in a blow-out 230 with a Fortgasöffnung 240 is blown. This blow-out room 230 has an air connection 241 ,

The at least one strut 120 . 121 . 122 . 123 . 130 . 131 . 132 . 133 . 140 . 141 . 142 , and or 143 at least partially forms a framework of the air / water heat pump 100 , On the at least one strut 120 . 121 . 122 . 123 . 130 . 131 . 132 . 133 . 140 . 141 . 142 , and or 143 is at least one layer 300 with cut outs 301 . 302 . 303 . 304 and advantageously with holes 305 applied. In the illustrated embodiment according to 1 is one layer each 300 . 310 . 320 . 330 on a front side 101 , a back 102 , a right side 103 as well as a left side 104 appropriate. It is also advantageous in the ground 105 as well as on a top 110 applied a corresponding layer. The layer is partially open in the upper part for the outside air flow. In the embodiment, the floor 105 as well as the top 110 sealed by other measures, such. As pressure-elastic rubber or similar plastic materials. In the lid 110 and / or in the ground 105 in particular jointing materials, in particular jointing tapes used, taped joints and openings with adhesive tapes or sealed with silicone or similar spray materials. It is advantageous to use foamed profiles, so that the struts are already surrounded by foam or a similar material.

Punches and / or holes serve to hold devices 170 , such as hooks, screws, rivets or the like, which are formed in particular on the struts or attached thereto, to pass through the layer. To the fixtures 170 be the trim parts as here in the embodiment, the outer walls 160 161 162 163 164 hooked, bolted or otherwise fastened. When hooking in particular pressure and shear forces arise between the outer walls and the layer. Therefore, it is advantageous to use a layer which has the lowest possible coefficient of friction towards the outer wall. It is particularly advantageous if a sliding layer, in particular a Teflon layer, is applied to the layer, which is particularly smooth, so that hardly any shearing forces arise when hooking in and slipping into the fastening hooks.

The airway 200 is connected to the outside air, once through the air intake opening 210 and once through the Fortgasöffnung 240 , During operation of the heat pump arises in the flow direction in front of the fan 221 a negative pressure and in the blow-out 230 an overpressure. In particular, due to the different pressure ratios between the interior of the building and the negative pressure or the overpressure in the heat pump, an air exchange between outside air and inside air is avoided by the layers adhered to the struts. But even if the heat pump is not in operation, ie, for example, that the fan 221 stands, z. B. by wind pressure pressure differences between the interior of the building and the outside air. By the gas seal with the layers an air exchange is avoided in this case between outside air and inside air.

The by air 200 arranged first heat exchanger 410 is an evaporator in heating mode. For air / water heat pumps 100 , which can also cool, is the first heat exchanger 410 in cooling mode, a condenser. The first heat exchanger 410 is in a refrigerant circuit 400 integrated, which continues to be a compressor 430 , Refrigerant lines 450 , Filter drier 440 , an expansion valve 420 , as well as a second heat exchanger 460 having. In heating mode is the second heat exchanger 460 a condenser and in the cooling mode of the air / water heat pump 100 an evaporator. Furthermore, the air / water heat pump 100 a switch room 500 on.

In the exemplary embodiment, the layers exist 300 . 310 . 320 . 330 , which are shown with an oblique dash-dot line, from a transparent PET film (therefore in the figures partially shown with a dash-short line) with a thickness of less than 3 mm, in particular about 0.1 mm , This has the advantage that the air / water heat pump 100 when removing one or more external walls 160 . 161 . 162 . 163 is to be seen, in particular the refrigerant circuit 400 as well as the airway 200 are at least partially visible.

In 4 is a layer 300 , In particular from a transparent PET film with a thickness of less than 3 mm, about 1 mm or in particular 0.1 mm with punched holes and holes 305 shown. Furthermore, there are two openings 306 . 307 attached, are carried out by the particular connection lines of the hydraulic system as well as for the power supply or other lines.

5 also shows a layer 300 with cut outs 301 and drilling 305 and additionally with an already applied adhesive layer 150 , in particular for example a double-sided adhesive tape, or with an adhesive film.

6 shows the use of at least one jointing tape 360 which is between a strut 120 and or 143 and the layer 300 is arranged. The joint sealing tape 360 is preferably at least at the strut 120 and or 143 and / or the layer 300 glued. An outer wall 160 and or 163 is in front of the shift.

In a further embodiment according to 7 is a joint sealing tape 360 between the strut 120 and or 143 and the outer wall 160 and or 163 appropriate. Advantageously, the joint-sealing tape on one side of an adhesive layer and on a second side of a sliding layer or at least one layer with a reduced friction factor, so that the outer wall 160 and or 163 to the strut 120 and or 143 can be hung. The use of the joint sealing strip is advantageously at least on a number of multiple struts 120 . 121 . 122 . 123 . 130 . 131 . 132 . 133 . 140 . 141 . 142 , and or 143 or completely opposite to several or all external walls 160 . 161 . 162 . 163 or 164 used.

8th shows the basic structure when using a shrink hood, via the air / water heat pump 100 is brought. By heating, the shrink hood contracts and encloses the air / water heat pump airtight.

The outer walls 160 . 161 . 162 . 163 . 164 are then, when the shrink hood is placed over the heat pump attached to the air / water heat pump, in particular hooked. The outer wall 160 has an inner air duct not shown for supply air and Fortgas with corresponding openings 180 . 181 on. With the air / water heat pump and a ventilation unit, the gas is exhausted. The outer wall 160 thus forms not only a simple wall but a functional part with an inner air duct.

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• EP 1870643 A2 [0003]
• DE 202008000950 U1 [0004]

Claims (12)

Outdoor Air-leading home automation device ( 100 ) for installation in a building in which an at least partially by a wall ( 201 ) formed airway ( 200 ) from an air intake opening ( 210 ) to a Fortgasöffnung ( 240 ), with an airway ( 200 ) space ( 220 ), in which a fan ( 221 ) is arranged, which promotes gas to a heat exchanger, characterized in that at least partially in addition to at least one outer wall ( 161 ) a thin, flexible and largely airtight, film-like layer ( 300 ), whereby the outdoor air-conducting building services equipment ( 100 ) is largely airtight to the building. Outdoor Air-leading home automation device ( 100 ) according to claim 1, characterized in that the layer ( 300 ) in the outdoor air-conducting building services equipment ( 100 ) between at least one outer wall and on at least one surface of the outside air-conducting building services equipment, in particular at least one strut, and the layer ( 300 ) is largely airtight on the surface, in particular rests on the strut. Outdoor Air-leading home automation device ( 100 ) according to claim 1 or 2, characterized in that the layer ( 300 ) on the surface, in particular a strut of the outdoor air-conducting building services equipment ( 100 ) is glued. Outdoor Air-leading home automation device ( 100 ) according to one of the preceding claims, characterized in that the layer ( 300 ) between the at least one outer wall and the surface, in particular struts, is arranged and around the outside air-conducting building services equipment ( 100 ), in particular around the struts ( 120 . 121 . 120 ). Outdoor Air-leading home automation device ( 100 ) according to one of the preceding claims, characterized in that the layer ( 300 ) at least one punched out ( 301 . 302 . 303 . 304 ) or cutouts, through the frame parts, functional parts, connecting lines, connecting elements or connecting cable through the layer ( 300 ) pass through. Outdoor Air-leading home automation device ( 100 ) according to one of the preceding claims, characterized in that the layer ( 300 ) is a film of plastic or metal, tar paper, impregnated paper, impregnated fabric, foam fleece, rubber or similar flexible airtight material, having a thickness of less than about 3 mm, about 1 mm or more preferably about 0.1 mm and especially made of PE or PET folio. Outdoor Air-leading home automation device ( 100 ) according to one of the preceding claims, characterized in that at least one layer ( 300 . 310 . 320 . 330 ) made of a plastic shrink film, in particular a shrink hood ( 340 ) is formed, so that any wrinkles or excesses can be eliminated by heating. Outdoor Air-leading Home Appliance Device ( 100 ) according to one of the preceding claims, characterized in that the layer ( 300 ) is pre-coated on one side with adhesive in the area of splices, a double-sided adhesive tape is glued between the layer and the surface or a strut or an elastic joint sealing strip ( 360 ) on the strut ( 120 ) or the layer ( 300 ) is glued. Outdoor Air-leading home automation device ( 100 ) according to any one of the preceding claims, characterized in that the outside air-conducting building services equipment ( 100 ) of the layer ( 300 ) almost completely, especially down to the ground 105 , or is completely enclosed, the outer walls on the outside of the layer ( 300 ) at least partially and the air intake ( 210 ) and the Fortgasöffnung ( 240 ) are free. Outdoor Air-leading home automation device ( 100 ), in particular according to one of the preceding claims, characterized in that the airway ( 200 ), consisting of the room ( 220 ), a first heat exchanger ( 410 ) with a defrosting pan ( 190 ) and the fan ( 221 ), completely from one layer ( 300 ), wherein the air intake opening ( 210 ) and the Fortgasöffnung ( 240 ) are open to the outside air. Outdoor Air-leading home automation device ( 100 ), in particular according to one of the preceding claims, characterized in that on at least one strut an elastic joint sealing strip ( 360 ) is attached with an adhesive layer and a surface with a reduced coefficient of friction, against which an outer wall. Outdoor Air-leading home automation device ( 100 ), namely air / water heat pump, fuel cell heater or ventilation device according to one of the preceding claims.

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